<template>
  <div class="sidebar">
    <el-menu class="sidebar-el-menu" :default-active="onRoutes" :collapse="collapse" background-color="#324157"
             text-color="#bfcbd9" active-text-color="#20a0ff" unique-opened router>
      <template v-for="item in sideItem">
        <template v-if="item.subs">
          <el-submenu :index="item.index" :key="item.index">
            <template #title>
              <i :class="item.icon"></i>
              <span>{{ item.title }}</span>
            </template>
            <template v-for="subItem in item.subs">
              <el-submenu v-if="subItem.subs" :index="subItem.index" :key="subItem.index">
                <template #title>{{ subItem.title }}</template>
                <el-menu-item v-for="(threeItem, i) in subItem.subs" :key="i" :index="threeItem.index">
                  {{ threeItem.title }}
                </el-menu-item>
              </el-submenu>
              <el-menu-item v-else :index="subItem.index" :key="subItem.index">{{ subItem.title }}
              </el-menu-item>
            </template>
          </el-submenu>
        </template>
        <template v-else>
          <el-menu-item :index="item.index" :key="item.index">
            <i :class="item.icon"></i>
            <template #title>{{ item.title }}</template>
          </el-menu-item>
        </template>
      </template>
    </el-menu>
  </div>
</template>

<script>
import {computed, watch} from "vue";
import {useStore} from "vuex";
import {useRoute} from "vue-router";
import {getUserInfo} from "../api";

export default {
  setup() {
    const items = [
      {
        icon: "el-icon-lx-home",
        index: "/dashboard",
        title: "系统首页",
      },
      {
        icon: "el-icon-lx-cascades",
        index: "/table",
        title: "我的考试",
      },
      {
        icon: "el-icon-lx-cascades",
        index: "/gradTable",
        title: "成绩汇总",
      },
      {
        icon: "el-icon-lx-copy",
        index: "/gradTable",
        title: "布设考试",
      },
      {
        icon: "el-icon-lx-copy",
        index: "/tabs",
        title: "tab选项卡",
      },
      {
        icon: "el-icon-lx-calendar",
        index: "3",
        title: "表单相关",
        subs: [
          {
            index: "/form",
            title: "基本表单",
          },
          {
            index: "/upload",
            title: "文件上传",
          },
          {
            index: "4",
            title: "三级菜单",
            subs: [
              {
                index: "/editor",
                title: "富文本编辑器",
              },
            ],
          },
        ],
      },
      {
        icon: "el-icon-lx-emoji",
        index: "/icon",
        title: "自定义图标",
      },
      {
        icon: "el-icon-pie-chart",
        index: "/charts",
        title: "schart图表",
      },
      {
        icon: "el-icon-lx-global",
        index: "/i18n",
        title: "国际化功能",
      },
      {
        icon: "el-icon-lx-global",
        index: "/complexTable",
        title: "编辑表格",
      },
      {
        icon: "el-icon-lx-warn",
        index: "7",
        title: "错误处理",
        subs: [
          {
            index: "/permission",
            title: "权限测试",
          },
          {
            index: "/404",
            title: "404页面",
          },
        ],
      },
      {
        icon: "el-icon-lx-redpacket_fill",
        index: "/donate",
        title: "支持作者",
      },
    ];
    const studentItems = [
      {
        icon: "el-icon-lx-home",
        index: "/dashboard",
        title: "系统首页",
      },
      {
        icon: "el-icon-lx-cascades",
        index: "/table",
        title: "我的考试",
      },
      {
        icon: "el-icon-lx-cascades",
        index: "/gradTable",
        title: "成绩汇总",
      }
    ];

    const route = useRoute();

    const onRoutes = computed(() => {
      return route.path;
    });

    const store = useStore();
    const collapse = computed(() => store.state.collapse);

    return {
      items,
      onRoutes,
      collapse,
    };
  },
  data(){
    return{
      sideItem:[],
      studentItems:[
        {
          icon: "el-icon-lx-home",
          index: "/dashboard",
          title: "系统首页",
        },
        {
          icon: "el-icon-lx-cascades",
          index: "/table",
          title: "我的考试",
        },
        {
          icon: "el-icon-lx-cascades",
          index: "/gradTable",
          title: "成绩汇总",
        }
      ],
      teacherItems:[
        {
          icon: "el-icon-lx-home",
          index: "/dashboard",
          title: "系统首页",
        },
        {
          icon: "el-icon-pie-chart",
          index: "/charts",
          title: "schart图表",
        },
        {
          icon: "el-icon-lx-likefill",
          index: "/TeacherTable",
          title: "布设考试",
        },
        {
          icon: "el-icon-lx-cascades",
          index: "/StudentsGrads",
          title: "成绩汇总",
        }
      ],
      adminItems:[
        {
          icon: "el-icon-lx-home",
          index: "/dashboard",
          title: "系统首页",
        },
        {
          icon: "el-icon-pie-chart",
          index: "/charts",
          title: "schart图表",
        },
        {
          icon: "el-icon-lx-likefill",
          index: "/TeacherTable",
          title: "布设考试",
        },
        {
          icon: "el-icon-lx-cascades",
          index: "/StudentsGrads",
          title: "成绩汇总",
        },
        {
          icon: "el-icon-lx-unlock",
          index: "/ClassTable",
          title: "考场管理",
        },
        {
          icon: "el-icon-lx-people",
          index: "/StudentManagement",
          title: "学生管理",
        },
        {
          icon: "el-icon-lx-voice",
          index: "/TeacherManagement",
          title: "老师管理",
        },
        {
          icon: "el-icon-lx-attention",
          index: "/SubjectManagement",
          title: "科目管理",
        }
      ]
    }
  },
  methods:{
    getUserInfo(){
      getUserInfo().then(res => {
        if(res.code === '200'){
          if(res.data.userRole === 'student'){
            this.sideItem = this.studentItems;
          }else if(res.data.userRole === 'teacher'){
            this.sideItem = this.teacherItems;
          }else if(res.data.userRole === 'admin'){
            this.sideItem = this.adminItems;
          }
          console.log(this.sideItem);
        }
      })
    }
  },
  mounted() {
    this.getUserInfo();
  }
};
</script>

<style scoped>
.sidebar {
  display: block;
  position: absolute;
  left: 0;
  top: 70px;
  bottom: 0;
  overflow-y: scroll;
}

.sidebar::-webkit-scrollbar {
  width: 0;
}

.sidebar-el-menu:not(.el-menu--collapse) {
  width: 250px;
}

.sidebar > ul {
  height: 100%;
}
</style>
